How to set marks on a VAZ 2107 Injector

Both on the carburetor engine of the VAZ 2107 car and on the injection engine, the gas distribution mechanism along with the drive remained the same, that is, chain. With excessive wear and stretching of the chain, a number of the following negative consequences are observed:

• Problem starting the engine.
• Significant increase in fuel mixture consumption.
• The appearance of carbon deposits on valve seats.
• Abnormal motor operation in all modes.
• Malfunction of the injection control sensor.

To avoid such negative consequences, it is necessary to carry out preventive work in a timely manner. We will learn more about how to set timing marks on a VAZ 2107 Lada family car with an injector power system.

Timing marks on a VAZ 2107 car injector

Both on the carburetor engine of the VAZ 2107 car and on the injection engine, the gas distribution mechanism along with the drive remained the same, that is, chain.
With excessive wear and stretching of the chain, a number of the following negative consequences are observed: To avoid such negative consequences, it is necessary to carry out preventive work in a timely manner. We will learn more about how to set timing marks on a VAZ 2107 Lada family car with an injector power system.

How to set timing marks on a VAZ 2107 injector

Based on your request, we found how to set timing marks on a VAZ 2107 injector - see here. Here you will find videos on car repair, reviews and photos.

Category: DIY repairs

Laughter on topic: All the women had a fight at work. To restore order, they called the shop manager, but the women were still screaming, interrupting each other. “Quiet!” - the boss shouted, losing patience. “Let the one who is older than everyone else speak!” And then there was silence...

Published by Admin: at the request of Franz

Reviews from the car owner: 7 years without problems. TO only. I can already change it, but I don’t know what I want, but this one was successful, FAILURE-FREE!!

Timing phases and when to set them according to marks

Valve timing refers to those moments at which the piston in the engine moves up and down over a certain interval. When irregularities in the valve timing occur, the pistons move incorrectly along the interval, resulting in uneven engine operation on the VAZ-2107.

If the driver notices that the car’s power decreases, fuel consumption increases, and engine interruptions occur, then it is necessary to resort to setting the valve timing according to marks. How to set marks on a VAZ 2107 carburetor and injector, we will learn from this material, since the design of the timing mechanism is identical.

How to set timing timing marks

The procedure involves performing the following manipulations:

This relative arrangement of the parts allows the piston of the 4th cylinder to be positioned at top dead center TDC.

Features of servicing the timing mechanism

After the timing marks are installed on the VAZ-2107, you need to perform the following actions:

The process of adjusting the valves on the VAZ-2107 is carried out according to the following scheme: initially 6 and 8 valves are adjusted, the report must be carried out from the radiator. After they are adjusted, you need to start adjusting valves 4 and 7, then valves 1 and 3, and finally valves 2 and 5.

How to adjust the valves on a VAZ-2107 car can be found out in more detail in the relevant material on this site. In conclusion, it is worth noting that VAZ-2107 cars are one of the most reliable vehicles, the production of which began back in the 90s.

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How to set the timing belt on a VAZ 2107 by marks

To perform some repair and adjustment work on the VAZ 2107 engine, the gas distribution mechanism must be set to the marks. They are applied to both the camshaft gear and the crankshaft pulley. To perform this work, we will need to perform some preliminary actions, namely, removing the valve cover from the engine.

To do this, use a head with a knob to unscrew all the fastening nuts that are located along the entire perimeter of the cover and remove it, after which you should pay attention to the camshaft gear. It is necessary that the protrusion on the cover exactly coincides with the mark on the star, which is clearly shown in the photo below:

To turn the camshaft, you can use either a large wrench and turn the ratchet, or you can use your hands to grasp the crankshaft pulley.

We also immediately pay attention to the marks on the crankshaft and the central mark of the housing of the front engine cover - they must also match.

It is with this position of the pulley and timing star that cylinder 1 or 4 is at TDC - top dead center. Now you can begin to carry out those procedures that are planned next, either setting the ignition, or adjusting valve clearances, etc.

Quick replacement of timing chain and sprockets on a VAZ 2107 with an injection engine

Recently they brought us a car with a broken cylinder head gasket, and since when replacing the gasket we would have to remove the timing chain, we decided to change it along with the sprockets. We’ll talk about replacing the gasket in another article, but here we’ll look at replacing the timing chain of a VAZ 2107, as well as sprockets and a tensioner with a damper, with your own hands in an ordinary garage. In principle, the procedure is applicable to all cars of this family, because all classics were equipped with one chain motor with a slight difference in volume.

The cost of replacing a VAZ-2107 timing chain with your own hands

The cost of replacing a timing chain primarily includes the cost of the component itself.
If it is replaced as a whole, together with other parts - sprocket, tensioner, damper, the monetary equivalent is 1,800 rubles. At what price can you buy quality parts?

1. The chain varies from 350 to 600 rubles.
2. The stars, which are installed on the crankshaft, camshaft, and also the oil pump, cost a total of 400 rubles.
3. The tensioner shoe, the mechanism damper, equipped with a rubber gasket, reaches 100 rubles.
4. If the shoe is improved (star bearing), the price is close to 1,400 rubles.
5. A chain damper will require an expenditure of 80 rubles.

When you buy a timing chain for a VAZ-2107 in a car store, pay attention to the condition of the rivets - ideally, absolutely all of them should be flattened, only such components guarantee that the pin will not pop out and the target will remain intact. Even if the tensioner is not cheap, there is no need to save money - a model with a sprocket on a bearing will extend the life of the chain, and the noise level will be comfortable for the ear.

Replacing the timing chain

Alternator belt tension.

Set top dead center (TDC)

Camshaft marks.

Removing the old timing chain

Installing a new timing chain

Timing chain tension

Be sure to turn the crankshaft two turns and check that all marks match.
We install all the parts in the reverse order of removal, fill in antifreeze. We start the engine and enjoy. Everything is quite simple, replacing the timing chain on this car with your own hands is quite possible, the only condition is the presence of an inspection hole.

Installation of camshaft VAZ 2107

The cylinder head camshaft is installed in the reverse order of removal. Before installing the part into the housing, it is necessary to lubricate the support journals with engine oil. When assembling, you should pay attention to two important points:

• correspondence of the marks on the camshaft and on the sprockets of its drive;
• tightening torque of the camshaft housing nuts.

First, you need to properly tighten the camshaft nuts. The nominal tightening torque of the nuts is 2.2 kgf•m. You cannot immediately tighten the fastening to such a torque. The VAZ 2107 camshaft is tightened in three to four stages so that the body is pressed evenly, without distortions. The nuts should be tightened from the center to the edges, in accordance with the “tightening chart” (see figure).

When the camshaft is installed, it is necessary to set its position relative to the crankshaft. There are marks on the camshaft bed, the front engine cover and the crankshaft and camshaft sprockets that should be followed. Even if the drive chain has been securely attached to the sprocket, when installing the camshaft, make sure that its position matches the position of the engine crankshaft. To correctly set the marks on the VAZ 2107 camshaft, you must perform the following steps:

• make sure that the mark on the crankshaft pulley is located opposite the long mark on the front engine cover (this corresponds to the top dead center of the fourth cylinder);

• install the sprocket on the camshaft and make sure that the mark on it matches the mark on the “bed”;

• put the chain on the sprockets without disturbing the position of the shafts;
• make sure that when the chain is tensioned, the marks match;
• tighten the camshaft sprocket bolt;

• turn the crankshaft two turns with the wrench;
• check the alignment of the marks on the camshaft and crankshaft;
• if necessary, change the position of the chain on the camshaft sprocket;
• Tighten the camshaft sprocket bolt and secure the lock washer.

Diagnostics of timing chain VAZ 2107i

Over time, the timing chain stretches, resulting in lateral vibrations in the downstream section of the chain. These vibrations can break the damper, and in extremely advanced cases, lead to the chain jumping on the sprocket and, as a result, damage to the engine. When the chain is stretched, a characteristic metallic sound appears in the front part of the engine, increase the speed a little and if the sound becomes weaker or disappears altogether, this is a clear sign of wear on the timing chain. If you have a semi-automatic tensioner installed, try tensioning the chain. The procedure is described above. If this does not help, you will have to change all elements of the gas distribution mechanism.

It is recommended to carry out the tensioning procedure every 10 km.

Timing marks on the injection VAZ 2107

The gas distribution mechanism and its drive of the seven engine produced by the Volzhsky Automobile Plant remained the same - chain. Extraction and excessive wear of the timing chain on the VAZ 2107 power unit by the injector-type power supply system leads to:

• difficulty starting the engine;
• unstable operation in all modes, especially at idle;
• a sharp increase in fuel consumption;
• formation of carbon deposits on valve seats;
• Damage to the injection control system sensors and catalytic converter may occur.

In order to avoid the negative consequences of weakening or stretching the chain drive of the VAZ 2107 car engine, it is necessary to carry out routine maintenance in a timely manner. The list of maintenance operations for the power unit with the injector power system is determined by the service book. The condition of the timing chain and the gaps between the camshaft cams and valve levers is monitored every 30 thousand km.

On warranty VAZ 2107 with an injector-type power system, such work is best carried out at an authorized auto repair center. If malfunctions occur due to the fault of the car plant, they will be eliminated at the expense of the manufacturer. At the end of this period, maintenance of the timing belt and other vehicle systems can be performed independently.

Preparation for service operations

Control of the tension of the chain drive of the gas distribution mechanism begins on an engine with a power system such as an injector or carburetor, similar to each other. The operation is performed in the sequence established by the manufacturer:

1. We place the car on a flat area with a hard surface and fix its spontaneous movement by installing chocks under the wheels and applying the parking brake. Set the gear shift lever to the neutral position.
2. Remove the cover from the cylinder head by unscrewing all the nuts along its contour using a tubular wrench. It is recommended to replace the old gasket; the use of sealants is not allowed.
3. Using a key set to “38”, we turn the crankshaft of the VAZ 2107 engine in order to align the marks on the moving parts and the stationary ones. Care must be taken when performing this action, and the locations of the control points should be illuminated with a flashlight or carrying device.
4. We combine two marks: the first is on the generator drive belt pulley with a special protrusion on the cover body, the second is on the upper sprocket of the gas distribution mechanism of the VAZ 2107 power unit with an injector power system.

With this relative arrangement of parts, the piston of the fourth cylinder is at the dead center at the top. Now you can begin performing service work on engine systems, in particular, timing belt and some others.

Performing powertrain maintenance

[ads1] A number of operations and repairs are carried out on a vehicle prepared in this way, including the following:

• Tensioning the timing chain, as well as replacing its components and parts, both on power units with a carburetor-type and injector-type power supply system.
• Adjustment of the valve, or rather, the thermal gap between the camshaft cams and the rocker arm. In this case, marks on the timing parts are placed at the beginning of the procedure and at the end of it.
• When setting up the ignition system of the power unit, in this case, to achieve the best result, it is recommended to use a special device - a tester.

VAZ 2107 cars with injection engines are still produced at enterprises in our country. They are highly reliable and economical at an affordable price, which is what determines their high popularity among consumers.

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The purpose of the timing chain and its length

To understand the purpose of the timing chain, it is necessary to outline what the engines of classic VAZ models are. All these engines are overhead engines. That is, the timing shaft (aka timing) is located in the upper part of the engine, above the crankshaft and above the oil pump shaft.

All these shafts are equipped with sprockets, onto which the timing chain is placed. The chain's job is simple: it must transmit torque from the timing shaft to the crankshaft and to the oil pump shaft. From the crankshaft, torque is transmitted to the chassis, and from there to the drive wheels. They begin to rotate and the car moves forward. Thus, the timing chain is the most important connecting link between the three engine shafts, and any breakdown of this link will inevitably lead to either serious problems in the operation of the motor or to its complete jamming if the chain breaks.

Timing chain installation

First, place the new chain on the crankshaft gear.

Then onto the top sprocket, which you immediately secure with a bolt.

Grab the chain with your hook, lifting it to where the camshaft sprocket should be.

Carefully place the chain on it and only then put it in place.

Having once again checked whether all the necessary marks match, you can safely tighten the camshaft sprocket.

Reinstall the chain guide, tensioner shoe and limit bolt. With the car in neutral, turn the crankshaft 3 full turns. If all marks match, tighten the chain tensioner with the nut. After engaging any gear, screw the gears in completely and replace the other parts.

Thus, for only 500 rubles on a VAZ 2107, you independently replaced the timing chain.

The timing chain on the VAZ 2107 is one of the most important parts that requires monitoring its condition. When Lada family cars have a mileage of more than 60 thousand km, it is necessary to check this element. The life of the chain depends not only on the vehicle’s mileage, but also on such factors as the nature of the vehicle’s operation. Damage to the product may cause it to break while the motor is running, which can have serious and costly consequences. If uneven operation of the engine or extraneous sounds during operation is detected, it is necessary to diagnose the gas distribution mechanism, and, if necessary, replace the timing chain on the VAZ 2107 with your own hands. We will find out how to do this further.

Main elements of the timing chain tensioning system

The timing chain in the engine is supported not only by the three sprockets mentioned above. It is supported by several other important devices.

Let's look at them in more detail.

Timing chain stop pin

The timing chain in the VAZ 2107 engine is supported by a complex tensioning system. One of the elements of this system is the limiting finger. This is a small cylindrical part screwed into the wall of the cylinder block. The pin is located next to the crankshaft sprocket. The purpose of the pin is as follows: if the timing chain tension suddenly weakens, the pin will prevent the chain from jumping off the crankshaft sprocket.

At the same time, the chain will begin to touch the limiter with a characteristic ringing sound, which will certainly attract the driver’s attention, since this sound will be heard even in the cabin. If the chain breaks, the limiter will not allow it to completely fly off the sprocket and break the nearby oil pump and timing shaft sprockets. If the timing chain is tensioned normally, it does not touch the limiting pin, since in this case there is a constant gap of about 1.5 cm between it and the pin.

About timing chain tensioners

The purpose of the timing chain tensioner is easy to guess from its name. He must constantly tension the chain, preventing it from sagging. If the chain sags by even half a centimeter, it may fly off one of the sprockets (although this happens quite rarely, much more often there are situations when the chain remains on the sprocket, but at the same time jumps several teeth forward, as a result of which the uniformity of its tension is completely disrupted , and the sagging increases even more). At different times, different types of tensioners were installed on the VAZ 2107.

Mechanical tensioners

In a mechanical tensioner, the force required for the tension shoe to press on the chain is created by a conventional spring. It presses on the rod, it moves out of the body and presses on the shoe. And the shoe, in turn, puts pressure on the chain, constantly dampening its vibrations.

The spring in such a tensioner is adjusted with a conventional plunger nut. If the driver needs to tighten the chain a little, he simply tightens the nut slightly, eliminating any slack.

Automatic tensioners

Automatic tensioners were installed on later models of the VAZ 2107. Unlike mechanical devices, the design of this tensioner includes a toothed bar with a ratchet.

The plunger spring presses on this bar, and the bar transmits this force to the shoe. The ratchet prevents the bar from returning to its original position. This keeps the timing chain tension constant.

Hydraulic tensioners

These tensioners were installed in the latest VAZ 2107 models. The main difference between these devices is the principle of their operation. The force in the hydraulic tensioner is created not by a spring, but by oil pressure. It is supplied to the tensioner through a reinforced high-pressure hose.

Timing chain tensioner

The timing chain tensioner is another indispensable element of the tension system, without which uniform operation of the timing chain is impossible. The damper is a metal plate that is attached to the wall of the cylinder block.

Replacing rocker arms on a VAZ 2107

Rockers (rocker arms) are one of the elements of the valve timing mechanism of the VAZ 2107 engine. The purpose of the part is to transmit energy from the camshaft cam to the valve stem. Since the rocker is constantly exposed to mechanical and thermal stress, it wears out over time.

Rocker arms are designed to transfer energy from the camshaft lobe to the valve stem

Determining the suitability of rocker arms

If during operation of the “Seven” there is a decrease in engine power or a characteristic knocking sound is heard in the cylinder head, then the likely cause is a broken rocker arm. During repair work, it is necessary to clean the rockers from dirt and carbon deposits and check them for wear and damage. If any defects in parts are found, they are replaced with new ones. If the rocker arms are in normal condition, install the products on the cylinder head.

If the rocker arm is heavily worn or there is visible damage, the part needs to be replaced

Is it possible to level the rocker arm?

When adjusting valves or repairing the cylinder head, you may notice that the rocker arms are slightly at odds with respect to the camshaft, i.e., the distance between the rocker plane and the camshaft journal is not the same. To eliminate this nuance, some owners of “classics” align or change the springs that press the rocker arms, or replace the rocker itself, but the problem may still remain. In fact, on all classic Zhiguli models, including the VAZ 2107, misalignment is not as bad as incorrect valve clearance

Therefore, it is the gap that deserves attention. The main thing is that the parameter is adjusted properly and is 0.15 mm when cold

When the rocker arm is skewed, some motorists change the part itself, the springs, and sometimes the camshaft, but they do not achieve the desired effect

How to replace a rocker arm

If there is a need to replace the rocker arms on the “seven”, for example, 1 part in case of its breakdown, then it is not necessary to dismantle the camshaft. To do this, it will be enough to pry the spring with a screwdriver, remove it, and then remove the rocker itself. The new part is installed in the reverse order. If all the rocker arms are being replaced, then it is wiser to dismantle the camshaft.

Video: replacing the rocker on a “classic” without removing the camshaft

Equipping the VAZ 2107 engine with hydraulic compensators improves its operation and characteristics. Installing the mechanism will not take much time and effort, but will require material costs. Therefore, whether there is a need for such an engine modernization or not, each motorist decides for himself.

Timing chain jump and its symptoms

The chain, like any other part of the car, wears out over time. Wear usually shows up as chain stretching. The cause of stretching is the so-called metal fatigue, which affects almost all parts that experience cyclic loads. Having stretched, the chain begins to sag significantly. If the driver does nothing, then sooner or later a situation will arise when the chain on one of the sprockets jumps one or two teeth forward. After this, all valve timing in the engine will be disrupted, as will its operation. Here are the main signs of a skipped timing chain:

All these signs indicate that the timing chain has not only weakened, but also jumped. And the driver needs to replace it as soon as possible. If this is not done, the engine will sooner or later seize, after which you will have to make expensive major repairs.

The procedure for replacing the timing chain on a VAZ 2107

Before starting the replacement, you should select all the necessary tools and consumables. We need the following things:

Sequence of operations

Since replacing the timing chain is a serious operation, it cannot be done without prior preparation. This preparation includes completely draining the coolant and removing the radiator.

About replacing a single-row chain with a double-row one

In early VAZ 2107 models, predominantly double-row timing chains were installed. This technical solution had its advantages:

The main disadvantage of the double-row chain was its heavy weight. It is for this reason that in later VAZ 2107 models they decided to abandon it. However, drivers concerned about engine safety and reliability can always return the double-row chain back. To do this, you will need to replace not only the chain itself, but also the entire tensioning mechanism, from the sprockets to the damper and tension shoe. The shoe, as you might guess, should be wider, i.e., designed for two rows of links. The shaft sprockets must also be double-rowed.

Previously, all these parts could be purchased in a single set. Nowadays, such kits are becoming increasingly rare, so drivers have to buy everything separately. Products are in great demand. This manufacturer produces not only chains, but also double-row sprockets.

The sequence of installing a double-row chain on a VAZ 2107 is no different from the above. There is only one peculiarity: instead of single-row sprockets, double-row sprockets are installed. The same goes for the tension shoe. The procedure for installing a double-row chain using marks is no different from that described above.

So, the timing chain is the most important part of the engine. The consequences of failure of this part can be catastrophic. In especially severe cases, a seized engine cannot be restored at all. It is for this reason that the car owner must carefully monitor the condition of the circuit and change it at the slightest suspicion of a malfunction. Even a novice car owner can replace the chain. Despite the apparent complexity of this procedure, there is nothing terrible about it. The main thing is to correctly install the chain according to the marks, and no problems with its further operation will arise.

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When should you turn on the ignition?

The first thing you need to know is that there are no regulations for this operation, since the ignition timing is set or adjusted only as needed. It may be caused by the following reasons:

1. You recently acquired a “seven” on the secondary market and are trying to “bring it to mind.”
2. After repairing the engine, which included disassembling it.
3. After unscrewing or removing the head ignition distributor (distributor), regardless of the reason why it was made.
4. When switching from high-octane fuel to gasoline with a lower octane number and vice versa.
5. After replacing the contact group or bearing in the distributor (in cars with an old ignition system).

Note. On VAZ 2107 vehicles equipped with an electronically controlled injector, a prerequisite for checking the spark generation system can be the flashing of the Check Engine display on the instrument panel. True, it behaves in a similar way when a dozen more malfunctions occur. So ignition problems must first be diagnosed by contacting a service station.

In the vast majority of cases, set as a result of a violation of the settings after disassembling or repairing the engine. A separate issue is the transition to high-octane gasoline, which requires ignition with greater advance, for which adjustments are being made.